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## "Beyond anyons", Zhenghan Wang, 2017

*Reviewed March 23, 2024*

*Citation:* Wang, Zhenghan. "Beyond anyons." Modern Physics Letters A 33.28 (2018): 1830011.

*Web:* https://arxiv.org/abs/1710.00464

*Tags:* Physical, Expository

This isn't really a paper - it's an essay. It's a really
cute essay about the possibilities for topological quantum computation
beyond anyons. In particular, Zhenghan talks about three different
ideas: computing with symmetry defects, computing with boundary defects,
and computing with small black holes. The symmetry defect and boundary
defect stories I am very well familiar with. The black hole idea is more
speculative, and is based on the Banados-Teitelboim-Zanelli model of quantum gravity.
If (2+1)D quantum gravity is a TQFT, what are the corresponding anyons? Black holes.
Might as well make a computer out of them.